Pleasant Prism Verdigris

From the French plaisant, pleasing — used as a color modifier since the fifteenth century for hues that read as agreeable, the kind of color that wears well over a long viewing without becoming demanding or fatiguing. Pleasant green, pleasant rose: moderate saturation combined with optical comfort. Sits at the crisp-bucket alongside easy and calm.

Greek πρῖσμα, something-sawn. As a color modifier, prism implies a Newtonian-rainbow-and-spectrum-splitting quality, the visual register of Newton-Optics-and-Cambridge-prism hand-Newtonian-rainbow-and-spectrum-splitting Newton-Optics-and-Cambridge-and-Trinity-College-prism prism-and-Newtonian-rainbow-and-spectrum-splitting surfaces under Newton-Optics-and-Cambridge-and-Trinity-College-prism 17th-century-natural-philosophy-and-rainbow-experiment spectrum-light. Sits at the modifier-and-cosmic end of the grid, parallel to corona and plasma in usage.

The basic copper carbonate that forms on weathered copper and bronze — the pigment scraped from oxidized metal and used in Renaissance painting before being supplanted by more stable greens. The color refers to a thick verdigris on aged copper roofing or the Statue of Liberty's surface: a soft, slightly muted blue-green with the powdery finish of mineral oxide. Cooler than patina, warmer than seafoam, with the archaeological weight of a mineral made by time.